Norma actually produced three loads for the 10mm.
200gr FMJ @ 1200fps I guess is the most well known. This load averages about 1130 fps from my Glock 20.
170gr JHP @ 1300fps. I've never seen this one, only heard about it. I'l love to get some and test it out though.
165gr JHP @ 1400fps. Looks great on paper but a dismal performer. I have a few boxes of this and the standard deviations are high, though not outrageously so. Velocity averages 1333fps from my Glock 20. This round is LOUD with the most flash and blast I've ever seen from my G20. Kinda fun to shoot though. Primers flatten, but the cases have held up good - no smiles near the case head at 6:00.
Tom
------------------
Don't Tread on Me
Why 10mm beats .45 ACP . . .
www.greent.com/40Page/ammo/10/10mm-advoc.htm